Background

Definition of background:

part of speech: noun

Ground in the rear; part of a picture which seems to extend behind the figures.

part of speech: noun

Ground at the back: a place of obscurity: the space behind the principal figures of a picture.

part of speech: noun

The distant portion of the landscape; the portion of a picture farthest away from the spectator, or lying between or above the chief figures; the whole of a surface upon which patterns or designs are executed; that which is dimly seen because it is far away; a place obscure or out of sight; that which is back of something and against which it can be looked at or viewed.